U Cygni

variable star in the constellation Cyfnus
Place carbon_star Q12777961
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U Cygni

Summary

U Cygni is a carbon star[1].

Key Facts

  • U Cygni's instance of is recorded as carbon star[2].
  • U Cygni's instance of is recorded as double star[3].
  • U Cygni's instance of is recorded as Mira variable[4].
  • U Cygni's instance of is recorded as emission-line star[5].
  • U Cygni's instance of is recorded as long-period variable star[6].
  • U Cygni's instance of is recorded as near-infrared source[7].
  • U Cygni's instance of is recorded as peculiar star[8].
  • U Cygni's instance of is recorded as variable star[9].
  • U Cygni's instance of is recorded as pulsating variable star[10].
  • U Cygni's constellation is recorded as Cygnus[11].
  • U Cygni's spectral class is recorded as C9,2e[12].
  • U Cygni's catalog code is recorded as CCDM J20197+4754A[13].
  • U Cygni's catalog code is recorded as DO 38285[14].
  • U Cygni's catalog code is recorded as GCRV 12701[15].
  • U Cygni's catalog code is recorded as HD 193680[16].
  • U Cygni's catalog code is recorded as HIC 100219[17].
  • U Cygni's catalog code is recorded as HIP 100219[18].
  • U Cygni's catalog code is recorded as IDS 20165+4734 A[19].
  • U Cygni's catalog code is recorded as IRAS 20180+4744[20].
  • U Cygni's catalog code is recorded as IRC +50324[21].
  • U Cygni's catalog code is recorded as JP11 3231[22].
  • U Cygni's catalog code is recorded as 2MASS J20193659+4753389[23].
  • U Cygni's catalog code is recorded as PPM 59720[24].
  • U Cygni's catalog code is recorded as RAFGL 2556[25].
  • U Cygni's catalog code is recorded as ROT 7661[26].

Body

Designation and Status

Recorded instance of include carbon star[2], double star[3], Mira variable[4], emission-line star[5], long-period variable star[6], and near-infrared source[7].

History and Context

Catalog codes include CCDM J20197+4754A[13], DO 38285[14], GCRV 12701[15], HD 193680[16], HIC 100219[17], and HIP 100219[18].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . SIMBAD. wikidata.org.
  2. [3] . SIMBAD. wikidata.org.
  3. [4] . General Catalogue of Variable Stars. wikidata.org.
  4. [5] . SIMBAD. wikidata.org.
  5. [6] . SIMBAD. wikidata.org.
  6. [7] . SIMBAD. wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . wikidata.org.
  10. [11] . wikidata.org.
  11. [12] . Circumstellar envelopes and the evolution of carbon stars. wikidata.org.
  12. [13] . SIMBAD. wikidata.org.
  13. [14] . SIMBAD. wikidata.org.
  14. [15] . SIMBAD. wikidata.org.
  15. [16] . SIMBAD. wikidata.org.
  16. [17] . SIMBAD. wikidata.org.
  17. [18] . SIMBAD. wikidata.org.
  18. [19] . SIMBAD. wikidata.org.
  19. [20] . SIMBAD. wikidata.org.
  20. [21] . SIMBAD. wikidata.org.
  21. [22] . SIMBAD. wikidata.org.
  22. [23] . SIMBAD. wikidata.org.
  23. [24] . SIMBAD. wikidata.org.
  24. [25] . SIMBAD. wikidata.org.
  25. [26] . SIMBAD. wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). U Cygni. Retrieved May 3, 2026, from https://4ort.xyz/entity/u-cygni
MLA “U Cygni.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/u-cygni.
BibTeX @misc{4ortxyz_u-cygni_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{U Cygni}}, year = {2026}, url = {https://4ort.xyz/entity/u-cygni}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): U Cygni — https://4ort.xyz/entity/u-cygni (retrieved 2026-05-03)

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